Hydraulic apparatus



Aug. 4, 1942. A. YOUNG HYDRAULIG APBARATUS Filed May 23', 1941 attomegPatented Aug. 4, 1942 HYDRAULIC APPARATUS i Arthur Young, York, Pa.,assignoto 8. Morgan Smith Company, York, Pa., a. corporation ofPennsylvania.

Application May 23, 1941, Serial No. 394355 3 Clains.

This invention relates to hydraulic machines of the axial flow or screwpropeller type.

An object of the invention is to provide an improved hydraulic apparatusin which the tube through which the fluid flows is offset with respectto the runner shaft'and arranged 'in parallel relationship with therunner shaft for a suitable distance above the runner.

Another object of the invention is to provide an improved pump in whichthe discharge tube, at a suitable distance from the impeller, is iormedwith an oiset portion, so that the impeller shaft will be disposedexteriorly of the discharge tube and in parallel relationship therewith.

Another object of the invention is to provide an improved hydraulicmachine of the above by bearings carried by the exterior of thedischarge tube.

Other objects and advantages will be readily apparent to those skilledin the art from the following description of the accompanying drawing,in which the single View is a vertical longitudinal section of a pumpemhodying the present invention.

As shown in the drawing, the complete pumping unit may comprise animpeller or runner II, having a shaft |2 connected to the armature shait!3 of an electric motor M.

The runner l I is disposed within the inlet portion !5 of atube ISmounted in a suction pit III.

Directly above' the runner ll the tube IB may be formed with a series ofvanes I'I for the purv pose of straightening the water delivered to thedischarge tube by the runner.

At a suitable point above the runner l'l, the tube IS is formed with acurved portion s, and this portion is so curved that the upper portionof the discharge tube is located in a plane oflset or at one side of thelongitudinal axis oi' the runner shaft z.

The portion |8 of the discharge tube IS may be in the form of an ogeecurve, and above this curved portion !8, the tube has a straight section|9 which is flisposed in parallel relationship to the runner shaft l2.

i type in which the impeller shaft is supported Since in pumpingapparatus there is a verti- A .will be exposed.

At the point where the shaft l2 passes through the wall of the tubethere is an opening 20, and in order to seal the joint between the shaftand the tube at the opening 20, a suitable packing 21 may be mounted inthe opening.

The hub 22 of the vanes l'l may constitute a hearing for the lower endof the runner shait z.

Other bearings 23 for supporting the shait !2 may be carried by theexterior of the tube IS.

Since the shaft !2, !rom the opening 20 tothe motor M, is not enclosedby the discharge tube. the bearings 23 will be readily accessible !orrepair and replacement.

Heretofore, in pumping apparatus of thetype in which the discharge tubehad considerable height and in which the runner shait was located alongthe vertical longitudinally' center line of the discharge tube, it wasnecessary to mount the several bearlngs for the shait within the tube.Thus, with the shaft bearings enclosed by the discharge tube, suchbearings were very inaccessible, and consequently it was difcult torepair or replace the bearings without dismantling the discharge tube.On the other hand, since the discharge tube of the present invention isso constructed that only the lower portion of the shaft l2 isenclosedobviously an improved construction has been provided by whichthe runner shaft and its bearings will not hinder the flow of fluidflowing through the discharge tube.

Atits upper end the section s oi the discharge tube may be connected toan elbow 28 formed with a splitter 24, as shown.

Another splitter 25 may also be iormed in the curved portion Is of thedischarge tube.

connected to the outer end of the elbow 28, is a discharge pipe 26.

Having thus described my invention, what I claim is:

1. A hydraulic machine comprising a runner, a shaft for the runner, atube having an inlet on one side of the runner and an outlet on theother side of the runner, said tube having the portion thereoi in whichthe runner is disposed located with its center on the longitudina axisof said runner and said shutt. said tube having a' portion thereoiarranged in paranei relationship with respect to the longitudinal axisof said shait, the twoadjoining portions or 'said tube being connectedby a curved portion of ogee form through which the runner shaft p'asses,bearings carried by the exterior of the tube tor supporting the portionof the shalt which is disposed in parallel relationship thereto, asplitter o! ogee form disposed in the ogee curved portion of said tubeand extendiig from a point adjacent to said runner shaft upwardly to theportion of said tube which is spaced from the runner shaft, an elbowconnected to the upper end of the portion of said tube which is spaced'from the runner shaft, a splitter formed centrally in said elbow, and'a discharge pipe connected to the outer end oi! said elbow.

2. A pump of the type described comprising a. runner having a motordriven shaft, a tube enclosing said runner and having a dischargeportion arranged separate of the shaft and in parallel relationship withrespect to the longitudinal axis of said shaft, the two adjoiningportions of said tube being connected adjacent to` said runner by anogee curved portion through which the shaft passes, bearings carried bythe exterior of the portion of the tube which is disposed in paralielrelationship to the longitudinai axis of said shaft for supporting theshaft, a splitter of ogee form disposed in the ogee curved portion ofsaid tube and extending from a point adjacent to said runner shaftupwardly to the portion of said tube which is spaced from the runnershaft and disposed in parallel relationship thereto, an elbow connectedto the upper end of the portion of said tube which is spaced from therunner shait, and a splitter formed coaxially in said elbow.

3. A pump oi' the type described comprising a tube having an inetportion and a discharge portion, a runner disposed in the inlet portionof said tube, a verticaly disposed Operating shalt for said runnerlocated on the longitudinal center line ot the inlet portion of thetube, the discharge portion of said tube having a portion adjacent tothe discharge side of said'runner disposed on the longitudinal centerline of said Operating shaft and a portion arranged in spaced paralerelationhip to the longitudinai center line of said Operating shatt, theadjoining portions of the discharge portion of said tube being connectedby a portion of gradual ogee curvature, an opening i'ormed in the curvedportion of said tube through which the runnershatt passes, a packingmounted in said opening, a. splitter of ogee form disposed coaxially inthe ogee curved portion oi' said tube and extending from a pointadjacent to said runner shalt upwardly to the portion of said tube whichis spaced from the runner shaft and disposed in paraliel relationshipthereto, an elbow connected to the upper end of the portion of said tubewhich is spaced from the runner shaft, a splitter formed coaxially insaid elbow, and a discharge pipe connected to the outer end ot saidelbow.

ARTHUR YOUNG.

